南芯原装 SC8808 同步降压-升压充电器芯片
Features
< Wide Input Range: 4.5V to 80V, 88V sustainable
< High Efficiency Buck-Boost Conversion
< Buck-Boost Battery Charger up to 16 cells Li-on battery, 18 cells LiFePO4 battery, lead-acid battery
< Charging Management including Trickle charge, Pre-Charge, CC Charge, CV Charge, Auto-recharge
Charge current : 1000mA~20A,150mA/step,for 5mΩ
Pre-charge current: 400mA~10A, 100mA/step,for 5mΩ
Termination Current: 400mA~10A,100mA/step ,for 5mΩ
< Support reverse discharging mode:
Power up USB port from battery (USB OTG), Compliant with PD 3.1
OTG output voltage 5~48V
EPR 24V/36V/48V
Output Current: 2375mA~50A, 375mA/step for 2mΩ
< I2C interface
< Input current limit set by external resistor and register, up to 50A, support 2mΩ/5mΩ sense resistor
< Input voltage regulation to avoid adapter overload
< Support external supply for driver, up to 10V
< Switching frequency: 80kHz~480kHz and support frequency dithering and frequency synchronization
< Current monitor for input and output current
< Automatic MPPT algorithm to support solar charging
< Integrated 11-bit high accuracy ADC for current/voltage monitor
< QFN 5x6-36 Package, 0.5mm pitch